Finding the Third Proportional to 13,721.91 and 29,425.78

Step by Step Solution

1. Step 1: Write the proportion equation
   13,721.91 : 29,425.78 = 29,425.78 : x
2. Step 2: Convert to fraction form
   13,721.91/29,425.78 = 29,425.78/x
3. Step 3: Cross multiply
   13,721.91x = 29,425.78 × 29,425.78
4. Step 4: Simplify right side
   13,721.91x = 865,876,602.17
5. Step 5: Solve for x
   x = 865,876,602.17/13,721.91
6. Step 6: Final answer
   x = 63,101.77